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use crate::{split::split, Block, Frame, View, P2};
use rayon::join;
pub fn decode(last_frame: &Frame, frame: &mut Frame, view: View, block: &Block) {
match block {
Block::Lit(pxs) => frame.import(view, &pxs),
Block::Split(a, b) => {
let [av, bv] = split(view);
let (frame1, frame2) =
unsafe { (&mut *(frame as *mut Frame), &mut *(frame as *mut Frame)) };
join(
|| decode(last_frame, frame1, av, &a),
|| decode(last_frame, frame2, bv, &b),
);
}
Block::Ref(r) => {
for y in view.a.y..view.b.y {
for x in view.a.x..view.b.x {
let p = P2 { x, y };
frame[p] = last_frame[p + r.pos_off] + r.color_off
}
}
}
}
}
|
